Taxonomy and Zoogeography of Certain Members of the “Sagitta Serratodentata-Group” (Chaetognatha)

Abstract

For the “ Sagitta serratodentata -group”, synonymy, morphology and biometrical data are given of S. serratodentata , S. tasmanica and S. pacifica . S. serratodentata is divided into two subspecies, S. serratodentata serratodentata and S. serratodentata atlantica . The zoogeography of all six taxa of the “ S. serratodentata -group” is discussed.